This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

I'm running OS X 10.5.8 & Firefox says that my computer is not compatible with the most recent upgrade. What am I missing? Thanks!

  • 2 fhreagra
  • 34 leis an bhfadhb seo
  • 5 views
  • Freagra is déanaí ó the-edmeister

JASHoughton
JASHoughton
more options

I'm running OS X 10.5.8 & Firefox says that my computer is not compatible with the most recent upgrade. What am I missing? Thanks!

I'm running OS X 10.5.8 & Firefox says that my computer is not compatible with the most recent upgrade. What am I missing? Thanks!

All Replies (2)

Swarnava Sengupta
Swarnava Sengupta
  • Locale Leader
more options

Check system requirement

Firefox 8

the-edmeister
the-edmeister
  • Moderator
more options

The last version of Firefox which is compatible with PPC architecture is Firefox 3.6.x.
http://www.mozilla.com/en-US/firefox/all-older.html

For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/

http://tenfourfox.blogspot.com/